City councillors are to write to Government, expressing their opposition to the planned reform of Ireland's Triple Lock system.
The Triple Lock means there must be Government, Dáil and UN approval before the Defence Forces can engage in peacekeeping.
This motion was introduced at City Hall by Independent Councillor Eibhlin Seoighte, who said there's no doubt the world faces very real and complex security issues.
But she argued any change to the Triple Lock - and the potential impact on our neutrality in future - must reflect the democratic will of the Irish people.
The Government has long signaled its intent to reform the Triple Lock - saying it's about about having autonomy to deploy peacekeepers as we see fit.
Under the current system, countries like China, Russia and the US can block any Irish deployment.
And Fianna Fail Councillor Peter Keane offered he did not want the likes of Vladimir Putin or Donald Trump making decisions on where Irish soldiers can carry out peacekeeping.
When it came down to a vote, the motion was passed by 9 votes to 6 - and a letter will now be sent to Government opposing the removal of the Triple Lock system.
City councillors may not hold much sway in military matters - but campaigners will be hoping enough local authorities following suit will give the Government pause for thought.